Altered ratios of beta-endorphin: beta-lipotropin released from anterior lobe corticotropes with increased secretory drive. I. Effects of diminished glucocorticoid secretion.
Altered ratios of beta-endorphin: beta-lipotropin released from anterior lobe corticotropes with increased secretory drive. I. Effects of diminished glucocorticoid secretion.
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随着分泌驱动力的增加,前叶促肾上腺皮质激素释放的β-内啡肽:β-促脂激素的比例发生改变。
DOI:
10.1111/j.1365-2826.1993.tb00370.x
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发表时间:
1993
影响因子:
3.2
通讯作者:
Akil,H
中科院分区:
文献类型:
--
作者:
Young,EA;Przewlocki,R;Patel,P;Watson,SJ;Akil,H
Previous studies have demonstrated that acute stress or ovine corticotropin‐releasing hormone (oCRH)in vivo, or oCRHin vitro, stimulates release of β‐endorphin over β‐lipotropin from anterior pituitary corticotropes. This occurs despite the predominance of β‐lipotropin in corticotrope peptide stores.In vitrostudies with primary anterior pituitary cultures suggested that chronic exposure to oCRH results in a shift towards more β‐lipotropin secretion into the media than with short‐term exposure. The current studies explored whether increased secretory drivein vivoresults in a similar shift towards more β‐lipotropin. We used removal of glucocorticoids by adrenalectomy or metyrapone blockade of corticosterone synthesis, to stimulate endogenous secretion of CRH and vasopressin. Both treatments resulted in shifts of the ratio of β‐endorphin: β‐lipotropin in plasma of experimental animals in comparison to the sham‐treated control rats.In vitrotesting with oCRH of anterior lobe cultures from adrenalectomized or metyrapone‐treated rats demonstrated similar effects of these treatments on the ratio of β‐endorphin : β‐lipotropin. These changes occurred despite similar ratios of β‐endorphin : β‐lipotropin in anterior pituitary peptide stores.
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影响因子:
2.9
作者:
S. Chládek;D. Ringer;K. Quiggle
通讯作者:
K. Quiggle
DOI:
--
发表时间:
1977
期刊:
影响因子:
--
作者:
J. H. Boom;J. D. Rooy
通讯作者:
J. D. Rooy
影响因子:
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作者:
T. Kruse;B. Clark;B. Appel;V. Erdmann
通讯作者:
V. Erdmann
影响因子:
4.8
作者:
G. Parlato;R. Pizzano;D. Picone;J. Guesnet;O. Fasano;A. Parmeggiani
通讯作者:
A. Parmeggiani
影响因子:
2.1
作者:
C. Reese;R. Saffhill;J. Sulston
通讯作者:
J. Sulston